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采用模糊控制器来代替人进行Ｆｕｚｚｙ控制，是仿照人脑的Ｆｕｚｚｙ推理决策过程。由于装置本身不会思维，因此，Ｆｕｚｚｙ控制过程是将精确量转化为模糊集，然后输入给模糊算法器进行处理。根据大庆油田采油六厂喇５６０联合站原油脱水系统的工艺情况，设计了一个带前馈的Ｆｕｚｚｙ—ＰＩ复合控制系统。通过理论和系统仿真证明：当采油压力有较大波动或脱水器参数有较大变化时，采用该系统对脱水器界面进行控制，其油水界面的波动完全能保持在规定的范围内，这样就可以满足脱水器正常工作的要求
Fuzzy control using fuzzy control instead of people, is a human-like fuzzy reasoning decision-making process. Since the device itself does not think, fuzzy control process is to convert the exact amount into a fuzzy set, and then input to the fuzzy algorithm for processing. According to the process of crude oil dewatering system in La 560 joint station of No.6 oil production plant in Daqing Oilfield, a Fuzzy-PI compound control system with feedforward is designed. Through the theory and system simulation, it is proved that when the oil pressure fluctuates greatly or the parameters of the dehydrator have great changes, the system is used to control the dehydrator interface. The fluctuation of the oil-water interface can be kept within the specified range completely, Dehydrator to meet the normal work requirements